# -*- coding: UTF-8 -*-
from collections import defaultdict
from typing import List
from leetcode_helper import TestcaseHelper, SolutionBase


class Solution(SolutionBase):
    # 解题的方法，命名和Leetcode的保持一致即可
    def isValidSudoku(self, board: List[List[str]]) -> bool:
        rows = [defaultdict(int) for _ in range(9)]
        cols = [defaultdict(int) for _ in range(9)]
        boxes = [defaultdict(int) for _ in range(9)]

        for i in range(9):
            row = rows[i]
            for j in range(9):
                col = cols[j]
                cell = board[i][j]

                if cell != '.':
                    row[cell] = row[cell] + 1
                    if row[cell] > 1:
                        return False

                    col[cell] = col[cell] + 1
                    if col[cell] > 1:
                        return False
                    box_id = (i // 3) * 3 + j // 3
                    box = boxes[box_id]
                    box[cell] = box[cell] + 1
                    if box[cell] > 1:
                        return False

        return True


if __name__ == '__main__':
    solution = Solution()

    # 按照leetcode的题目说明，将基本的test case填入
    # 每条case的最后一个元素是正确的结果，即期待的结果
    # 使用元组来保存输入的数据，期待的结果
    testcases = [
        ([["5", "3", ".", ".", "7", ".", ".", ".", "."],
          ["6", ".", ".", "1", "9", "5", ".", ".", "."],
          [".", "9", "8", ".", ".", ".", ".", "6", "."],
          ["8", ".", ".", ".", "6", ".", ".", ".", "3"],
          ["4", ".", ".", "8", ".", "3", ".", ".", "1"],
          ["7", ".", ".", ".", "2", ".", ".", ".", "6"],
          [".", "6", ".", ".", ".", ".", "2", "8", "."],
          [".", ".", ".", "4", "1", "9", ".", ".", "5"],
          [".", ".", ".", ".", "8", ".", ".", "7", "9"]], True),

        ([["8", "3", ".", ".", "7", ".", ".", ".", "."],
          ["6", ".", ".", "1", "9", "5", ".", ".", "."],
          [".", "9", "8", ".", ".", ".", ".", "6", "."],
          ["8", ".", ".", ".", "6", ".", ".", ".", "3"],
          ["4", ".", ".", "8", ".", "3", ".", ".", "1"],
          ["7", ".", ".", ".", "2", ".", ".", ".", "6"],
          [".", "6", ".", ".", ".", ".", "2", "8", "."],
          [".", ".", ".", "4", "1", "9", ".", ".", "5"],
          [".", ".", ".", ".", "8", ".", ".", "7", "9"]], False)
    ]

    for case_item in testcases:
        # 获取测试用的case和期待的执行结果
        input1 = case_item[0]
        expect = case_item[len(case_item) - 1]
        exec_result = solution.isValidSudoku(input1)

        # 判断执行结果，输出提示信息
        check_result = solution.check_result(expect, exec_result)
        TestcaseHelper.print_case(check_result, case_item, exec_result)
